Decrypting the PFS Layer is already something that can be achieved via Vitashell on a hacked PS Vita. However, Psvpfstools runs the entire decryption task on a PC, without requiring a PS Vita. Being able to decrypt games is useful for things such as mods or fan translations.
https://github.com/motoharu-gosuto/psvpfstools
http://wololo.net/2017/11/13/psvita-...fs-filesystem/
https://github.com/motoharu-gosuto/psvpfstools
http://wololo.net/2017/11/13/psvita-...fs-filesystem/
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